Lock



J. I. STEEN.

LOCK. APPLICATION FILED NOV- 5, I917.

Patented Sept. 7,1920.

PATENT OFFICE.

JOHN I. STEEN, 0F WAUKEG'AN, ILLINOIS.

LOCK.

Specification of Letters Patent.

Patented Sept. '7, 1920.

Application filed November 5, 1917. Serial No. 200,337.

To all whom it may concern:

Be it known that 1, JOHN I. SrnnN, a citizen or the United States,residing at VJaukegan, in the county of Lake and State of Illinois, haveinvented certain new and useful improvements in Locks, of which thefollowing is a specification.

This invention relates to improvements in locks of the keyless type andone object is to provide a lock of this class adapted particularly foruse on trunks, suit-cases, traveling bags and the like although the lockis,

capable, as well, of a very general use. A further object is to providea lock of this type that is neat in appearance, simple in constructionsince it is composed of few parts, and that is cheap to manufacture, andthat will not become locked in open position.

With the foregoing andv other objects in view the invention consists inthe construction and novel combination and arrangement or partshereinafter fully described, illustrated in the accompanying drawingwhich forms a part of this specification, and pointed out in the claimshereto ap pended, it being understood that various changes in form,proportion, and minor details of construction may be resorted to withoutdeparting from the spirit or sacrificing any of the advantages of theinvention.

In the'drawing:

Figure 1 is'a face view of my improved lock.

Fig. 2 is an edge view of the same in open position and partly insection to afford a better illustration. 7

Fig. 3'is asectioual fragmentary plan view of the interior of the lock,taken on line 3 3 of Fig. 2, but with one washer omitted to disclose thetop tumbler more clearly.

Fig. iis a View similar to Fig. 3, the aforesaid washer being included,but with the movable parts in an altered position.

Fig. 5 is a sectional view of theindicator. Fig. 6 is a section on line6--6 of Fig. 8. Like reference characters denote corresponding partsthroughout the several views.

The reference numeral 1 denotes'an anchor plate designed to be securedbythe screws 2 to the body portionB of the trunk or other article to belocked. To the plate 1 a leaf 1 is secured by hinge 5, the free end ofsaid leaf being formed with a flat rounded portion 6 whereon thenumbered graduations 7 are formed and in which the spaced apertures 8are formed. I formed about the flat portion to afford protection iior anindicator 10 which is adapted for registration with the graduations 7and which extends through an enlarged opening 11 formed centrally or"said fiat portion 6 to permit liberal relative movement of saidindicator. The indicator 10 is a hollow me1nb'er,'circular in crosssection and closed at one end and formed of two concentric detachablecup-shaped portions, one of said portions being formed with the flange13 and the ether with the terminal flange 12 from which the lug 14:

is bent, said flanges being positioned upon opposite sides of the flatportion 6.

A plate 15 provided with lateral wings 16 is secured to the trunk topthereby, said plate being formed with a circular central depression 17and with an outer rounded edge 18. An inverted U-shaped yoke 19 has itsends secured in the bottom of the depres sion and its base spaced abovethe said depression, said yoke extending through an aperture 20 in thebottom of a casing 21 which casing is circular in shape and adapted tofit inside the depression 17, said yoke 19 permitting limited play ofsaid casing but preventing rotation of the same within said depression.The casing 21 is provided with a sight perforation 21 and is formedalong its upturned rim with the spaced lugs 22 adapted for insertion inthe apertures 8 oi the rounded portion 6 of the leaf 4 wherebv saidcasing and leaf are releasably secured together. An anchor lug 23secured to the rim of the casing diametrically opposite the yoke 19extends inwardly toward said yoke. A. circular tumbler casing 2% isformed with the diametrically opposed openings 25, 2G in its wall, anexte1ision27 of said casing 2 1 registering with the opening 26, saidextension being adapted for insertion in the yo re 19. The base of thetumbler casing is formed with the notch 28 in the plane 01? thewall-opening 25, said notch 28 being smaller than the said wall opening.lVithiu the tumbler casing I provide a tumbler 29, adapted to rest uponthe casing base, which is formed with a peripheral notch 3i) adapted to,be moved into alinement with the notch 28 of the tumbler casing and saidtumbler 29 is also formed with a lug 31. A washer 32 adapted to liedirectly upon the A peripheral rib 9 is ion llO

tuinloler 29 encircling the lug 31 is formed with the spaced outwardlyprojecting prongs 33 which project through the casing opening 25 toengage the anchor lug 23. A second tumbler 34 adapted to he directlyupon the washer 32 is formed with a peripheral directly upon the tumbler3a. is formed with the spaced outwardly projecting proiigs'33 whichproject through the casing opening 25 to engage the anchorlug'23. Whenthe peripheral notches of the tumblers 29, 34mgister with the casingopening 25 the anchor lug 23 may project'into said alined notches andbetween the prongs of the washers to prevent independent rotary movementof one or more of said elements and due to this fact it is practicallyimpossible for the relative position of the tumblers to become disturbedwhile the lock is open. The tumbler casing iscapable of a slidingmovement'ovcr the casing 21 and when-the notched portions of thetumblers and of the tumbler easing are engage(jl by the anchor lug 23the tumbler casing has moved into such position that its extension, 27is re moved from the yoke 19. When the tumbler casing is moved out ofengagement with the anchor lug the extension 27is again disposed withinthe yoke 19. The flange 12 fits snugly inside the periphery of thetumbler casing 24: and movement of the indicator 10 in the elongatedslot 11 is sufficient to cause the said flange 12 to slide the casing 24back and forth upon the bottom of the casing 21 to cause engagement withor disengagement fromthelug 23.

l/V hen the notched portions of the tumblers and thecasing opening 25are in alinement, the indicator 10' maybe moved to move the tumblercasing back'and forth over the casing 21, described, since theterminalflange 12 of said indicator fits snugly inside the rim of the tumblercasing. The lug 1% of the indicator projects toward the tumbler 34inside the washer for engagement with the lug 36, which projects fromeach lateral face of said'tumble'r, as the indicator is rotated. Todetermine a combination the indicator is rotated and when its lug'14lengages the lug 36 oftumbler 34 it will rotate that tumbler and theopposite end of lug 3G upoirthe opposite side of the tumbler coming inengagement with the lug 31 of the tumbler 29 will rotate tumbler 29.When the notch'BOof tumbler 29 is in 'alinement with-the tumbler-opening25, as may be determined by observation through the sight perforation21?, a reading of the indicator upon thegraduations is taken. Theindicator is now rotated in the opposite direction"thus rotating thetumbler 341 until its 'The direction left, or vice yersa, together withthe read ings taken, form the combination. When the notches 30, andopening 25 are in alineinent the tumbler casing 24 wi l slide away fromthe yoke 19 through gravity when the lock is in the position shown inFigs. land 2, and this movement will also be'shared by the indicator 10,and the tumblers will move into engagement with the anchor lug 23. Thegravity movement just described will take place provided the lock isretained by the trunk, to which it is secured; in vertical positionwhich is usual. lhe' lock is'now open and in this position thetumblersfare retained in their relative positions by the anchor lug sothat the mechanism cannot become locked in open position. W hen the lockis oven the casin 2'1 and leaf are readily moved out of engageinent'withthe yoke 19. To lock the ldck the leaf andcasing 21 are again moved intoengagement with the yoke 19 and the indicater moved toward said yoke andthen rotated when the notched portions of the turnblers will be disposedout of alinement with each other and with the opening 25 in the tumblercasing.

lVhat is'claimed is e 1. In a look, a hinged leaf formed withgraduations and with an elongated perforation, a perforate casingcarried by said leaf, one of the perforations in said casing being asight' perforation, i 'a wingetl' plate formed with a depression toreceive "said casing, an inverted U-shaped yoke carried by said platefor disposal in one perforation in said casing, an anchor lug formedin-said casing diametrically opposite the yoke-receiving perforation, anotched tumbler casing disposed in the first named casing, the

beingfadapted for releasable engagement 7 with said fanchor lug, saidtumblerras'ing being slidable relative to said' first named casing, inone position of the latteifl'through gravity to cause disengagement ofsaidtumbler-casing-extension "from said U shap ed v yoke and engagementof the notched' portions of'the'tumblers with said anchor lug, a prongedwasher arranged upon each tumbler within said tumbler casing, the prongsof said washers being spaced "apart for, en-

gagement with the sai danchor lug, 'lugs formed uponsaid tumblers forengagement with each other, an indicator disposed in the elongatedportion of said hinged leaf and formed of two cup-shaped portions eachprovided with a flange which flanges are disposed upon opposite sides ofsaid hinged leaf, one of said flanges fitting snugly inside theperipheryof said tumbler easing whereby sliding movement of said tumbler casingmay be manually effected, and a lug formed in said last named indicatorflange for engagement with one of the lugs of one of said tumblers.

2. In a lock, a hinged leaf formed with graduations and with anelongated perforation, a perforate casing carried by said leaf, one ofthe perforations in said casing being a sight perforation, a wingedplate formed with, a depression to receive said casing, a yoke carriedby said plate for disposal in one perforation in said casing, an anchorlug formed in said casing, a tumbler casing disposed in the first namedcasing in engagement with the said anchor lug, an extension formed uponsaid tumbler casing for releasable engagement with the said yoke, rotarytumblers within said tumbler casing capable of releasable engagementwith said anchor lug, said tumbler casing being slidable with relationto the first named casing, in one direction through gravity when thelock is opened, to cause disengagement of said tumbler-casing-extensionfrom said U-shaped yoke and engagement of said tumblers with said anchorlug, pronged washers aranged upon said .7

tumblers, the prongs of said washers engaging said anchor lug, meanswherebyrotary movement of one tumbler is transmitted to the othertumbler, an indicator disposed in the elongated perforation in saidhinged leaf and engaging said tumbler casing whereby sliding movement ofthe same may be manually effected, and a lug carried by said indicatorfor operative engagement with one of said tumblers.

. In testimony that I claim the foregoing as my own I have heretoaflixed my signature in the presence of two subscribing witnesses.

JOHN I. STEEN.

Witnesses H. SANDERS, GRACE THOIPSON.

